Router door latch and strike plate templet set



Apm'ilil 3? J. BAUER 23A ROUTER DOOR LATCH AND STRIKE PLATE TEMPLET SETFiled Jan. 5, 1955 INVENTOR. Joseph Bauer ATTD RN EYS United StatesPatent ROUTER DODR LATCH AND STRIKE PLATE a TEMPLET SET This inventionrelates to a methodof and apparatus for locating and positioninglatches, locks and strike plates in a door or door jamb. I

The object of the invention is to provide a templet set which permitslocks or latches and strike plates to be located in a door or a doorjarnb without the necessity of chopping a recess in the door with ahammer and chisel.

Another object of the invention is to provide a router door latch andstrike plate templet set which includesan alignment plug that has a pinextending therethrough, there being a templet providedwith a recess forreceiving therein the plug, so that when the plug is removed a tool canbe used for mortising the door or door jamb so that clearance or acutout can be provided in the door or door jamb without the necessity ofchopping with a hammer and chisel.

A further object of the invention is to provide a router door latch andstrike plate templet set which is extremel simple and inexpensive tomanufacture.

Other objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings, forming a part of this application, and inwhich like numerals are used to designate like parts throughout thesame:

Figure 1 is a fragmentary perspective view illustrating a portion of adoor, showing the holes in the door and showing the preparation of thedoor for using the present invention.

Figure 2 is a perspective view of the alignment plug.

Figure 3 is a perspective view with parts broken away and in sectionshowing the alignment plug having its pin extending into one of theholes in the door.

Figure 4 is a perspective view illustrating the latch templet in placeon the end of the door and with the alignment plug removed.

Figure 5 is a perspective view of a modification showing a templet foruse in providing a cutout in a door jamb whereby a strike plate can bemounted in the door jarnb.

Referring in detail to the drawings, the numeral designates a portion ofa door which is to be mortised for insertion therein of a door latch orlock such as a lock of the tumbler type. In using the templet set of thepresent invention a hole 11 may be drilled or otherwise formed in thedoor 10 and the hole 11 may extend in through one side of the door. Asecond hole 12 may extend into an end or edge of the door as shown inFigure 1, and the hole 12 may be of smaller diameter than the hole 11,the holes 11 and 12 being arranged so that their longitudinal axis isarranged at right angles with respect to each other.

After the holes 11 and 12 are drilled in the door 11 an alignment plug14 is used. The alignment plug .14 can be made of any suitable materialand includes a flat plate 15 which has its corners rounded as at 16 fora purpose to be later described. A pin 17 extends through the plate 15and can be secured thereto in any suitable manner. One end of the pin 17is adapted to be snugly seated in the hole or opening 12, while theother or outer 2 end of the pin 17 is adapted to be used as a handle aswhen the plug is to be removed.

The templet set further includes a router latch templet which isindicated generally by the numeral 18, and the templet 18 is in thenature of a flat plate which is provided with a recess or cutout 20 thatsnugly receives therein the plate 15 of the alignment plug I l. Thecorners of the recess 26) are also rounded as at 21. The numeral 19designates suitable securing elements such as screws which can extendthrough apertures in the templet 18 for releasably or detachablyconnecting the templet 18 to the edge of the door 10. After the screws19 are in place, the plug 14 is removed by gripping the handle 17 andthen suitable router toolcan be used for mortising out the door toprovide space for thedoor latch and then the screws 19 and templet 18can be removed.

Referring to Figure 5 there is shown a modification wherein there isillustrated atemplet for forming a mortise in adoor jamb 27 so that astrike plate can be connected to the jamb 27. Thus, in Figure 5 thenumeral 22 designates a strike plate templet which may be detacha'blyconnected to the jamb 27 by suitable securing elements such as nails 23.The templet 22 is provided with a recess or cutout 24 which is adaptedto receive the plate 15 of the alignment plate 14. A hole 28 is drilledin the jamb 27 for receiving the inner end of the pin 17. The templet 22is constructed so that the corners of the recessed portion 24 arerounded as at 25, and there is further provided in the templet 22 acutout portion 26 since in a strike plate, a projecting portion extendsoutwardly and this projecting portion will extend through the space inthe door j-amb provided by the cutout 26. With the templet 22 inposition, a suitable router tool can be used for mortising out the doorjamb to provide clearance for the strike plate and then the templet 22is removed from the jamb, after which the strike plate is mounted in thejamb.

From the foregoing it is apparent that there has been provided a methodof and apparatus for use in mortising doors and door jamhs so that it isnot necessary to use a hammer and chisel to cut out the door or door jamb. In use, the holes 11 and 12 are initially formed in the door 10, thenthe plug 14 is arranged so that the pin 17 extends into the hole 12. Thehole 11 is: adapted to b used for receiving the tumbler of a latch ofconventional construction. After the plug 14 is in position as shown inFigure 3, the templet 18 is positioned over the plug 14 so that thecutout 20 snugly receives therein the plate 15, the rounded corners 16of the plate 15 snugly seating in the rounded corners 21 of the templet18. Then, the handle 17 is gripped and the plug- 15 is removed leavingthe templet 18 against the end of the door as shown in Figure 4 so thatsuitable securing elements such as screws 19 can be used for temporarilyfastening the templet 18 to the end of the door. Then, a suitable toolwhich may be power driven is used to cut out the space in the doorexposed by the cutout 20 and due to the provision of the rounded corners21 the tool can be easily worked or extended through the cutout 20without having sharp edges to encounter. When the cutout has been formedat the sufficient depth, the screws 19 and templet 18 are removedleaving a cutout which is of the same size as the cutout 20 and thiscutout in the door can be used for receiving the usual la-tch plate.

In Figure 5 the templet 22 can be used. in lieu of the templet 18 so asto form an opening in the door jamb 27 which has a shape thatcorresponds to the cutouts 24 and 26. This configuration providesclearance for the usual strike plate which is mounted in the door jamb27 after the templet 22 is removed.

The size of the parts can be varied as desired. With the presentinvention doors and door jambs can be mortised easier and quickerwithout the necessity of chopping out the door with a hammer and chisel.Furthermore, due to the fact that the openings in the templets haverounded corners, the plates which are inserted in the openings in thedoor or door vjamb .Will also have rounded corners so that they will bemuch more attractive and modern in design. Instead of using nails orscrews for connecting the templets to the door or jamb, clamps can beused. Furthermore, by using a router tool, a more uni'form cut in thedoor will be provided.

'I claim:

,1. A method of mortising a door to provide space for a door latch,comprising the steps of forming a first hole in one side of the door,thenforming a second hole of smaller diameter in the end of the door,said holes .having a longitudinal axis arranged at right angles withrespect to each other, next positioning an alignment membercontig-uousto the edge of saiddoo-r, said alignment member including a plate havingrounded corners and provided with a pin extending therethrough, theinner end of said pin extending into said second hole and the outer endof said pin defining a handle member, next arranging a latch templetmember contiguous to the end of the door and detachably connecting thelatch templet to the door, the templet member being provided with arecess having rounded corners for snugly receiving therein the alignmentmember, then removing the alignment member by means of the handle memberwhereby a router tool can he used for mortising the portion of the doorexposed thru said recess, and then removing the templet member.

2. A method of mortising a door jamb to provide clearance for a strikeplate, comprising the steps of forming a hole in said jamb, thenpositioning an alignment member contiguous to said jamb, said memberhaving a pin extending therethrough, then positioning a templet memberaround said plug, said templet member being provided with a cutout forreceiving said alignment member and said cutout having rounded corners,then removing the alignment member, whereby a router tool can be usedfor mortising the space in the jamb defined or exposed by the cutout insaid templet member.

3. A templet set for use in mortising comprising an alignment plugincluding a rectangular flat plate provided with rounded corners, a pinextending transversely through said plate intermediate the ends thereof,the ends of said pin extending beyond said plate, and a templet providedwith a recess having rounded corners for snugly receiving said plug. H

References Cited inthe file of this patent UNITED STATES PATENTS

